On Sat, 2010-11-13 at 13:17 +0100, Ralf Hildebrandt wrote:
- Timo Sirainen tss@iki.fi:
There's a lot more of IPC going on now. Each process at startup connects to config process to read configuration (vs. reading it from environment variables). State tracking is done in anvil process (vs. master process internally). Logging is via pipes to log process instead of sockets to master process (this should improve performance). Maybe other things I can't think of now.
Is "dstat --ipc" a suitable to measure/see what's going on?
That looks like it's about sysv IPC, which Dovecot doesn't use. Maybe some other options would show something useful, I don't know.
Anyway, getting the rusage stats for v1.2 and comparing them to v2.0 might show something useful. Could you patch your v1.2 with the attached patch and again get one day's stats through logparse.pl? (Need to change Debug -> Info in its regexp)